Thread: 7mm mag 26" velocity

Originally Posted by Spanners

If you're shooting 2 diff weight proj with the same powder change then you will have more grunt behind the heavier proj - simple physics
Each weight pill needs to treated as a diff load

The protectile and powder were the same in each test. Only the rifle and thus barrel length were different. Just an observation that the lighter 150's showed a more pronounced velocity gain in the longer barrel than the heavier 162 to 180 grain projectiles.